Buffer Part Kits
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AT3™Sale!
AT3™ Carbine Buffer Spring for AR-15
Carbine Buffer Spring for 6-Position Adjustable Buffer Tubes This spring will fit in any carbine-length buffer tube to complete your AR15 buffer system. This piece is ideal for repairing a... -
AT3™Sale!
AT3™ Mil Spec Buffer Tube Kit For AR-15 – 10 Colors Available
The perfect kit for your next build - at a price that can't be beat. This Mil-Spec AR-15 Buffer Tube Kit includes the buffer tube, castle nut, lock plate, 3oz...10 Options -
10% Off!
Strike Industries Multi-Function End Plate with Anti-Rotation Castle Nut
Strike Industries Multi-Function End Plate with Anti-Rotation Castle Nut The SI Multi-Function End Plate and Anti-Rotation Castle Nut are designed to update and upgrade the often neglected castle nut and...2 Options -
10% Off!
Strike Industries Short AR Pistol Buffer Tube Kit
Compact Power: Strike Industries Pistol Buffer Tube The Strike Industries Pistol Buffer Tube delivers enhanced functionality and reduced overall length for your AR-style pistol or personal defense weapon. Machined from...4 Options -
UTG Pro Six Position Mil-spec AR 15 Buffer Tube Kit
Complete UTG Buffer Assembly - Add Your Own Stock This receiver extension kit from UTG comes with a buffer tube, buffer spring, 3.0 oz carbine buffer, castle nut, and endplate. ...2 Options -
KAK Industry K-SPEC Enhanced AR-15 PCC Buffer with Flatwire Spring
KAK Industry K-SPEC Enhanced AR-15 PCC Buffer with Flatwire Spring The K-SPEC Enhanced AR15 PCC Buffer is a cutting-edge recoil management solution specifically engineered for the AR15 Pistol Caliber Platform....4 Options -
Armaspec A1/A2 Buffer Adapter for Stealth Recoil Spring
A Simple Drop-In Solution for using the Stealth Recoil Spring in a Fixed Stock If you have a fixed stock and rifle-length buffer assembly, you're probably short on options for... -
KAK Industry K-SPEC Enhanced AR-15 Buffer with Flatwire Spring
KAK Industry K-SPEC Enhanced AR-15 Buffer with Flatwire Spring The KAK Industry K-SPEC Enhanced AR-15 Buffer with Flatwire Spring is a top-of-the-line buffer upgrade designed specifically for AR-15 rifles. Crafted...3 Options3 Options3 Options -
3 Pack of 1/4 Inch Spacers for Stealth Recoil Spring for AR 15
Spacers for Fitting the Stealth Recoil Spring in Non-Standard Builds For builds with long, non-standard buffer tubes, these spacers can be useful for ensuring your Stealth Recoil Spring will function... -
AT3™Sale!
AT3 AR 15 Lower Build Kit – Magpul Stock and Grip, AT3 Lower Parts...
Finish Off Your New Rifle Lower with an Enhanced Trigger and Matching Magpul Furniture Your AR lower has some of the most critical parts you don't want to skimp on...4 Options -
VLTOR A5 Receiver Extension Kit with A5 Buffer and Spring for AR-15
VLTOR A5 Spring and Buffer Kit VLTOR's patented A5 system reduces felt recoil and bolt velocity with a proprietary buffer and specialized spring. The A5 system functions more like the... -
Phase 5 Weapon Systems AR-15 Pistol Buffer Tube Assembly
The Perfect Buffer Tube Assembly For Your Pistol Caliber Rifle The Phase 5 Weapon Systems AR-15 Pistol Buffer Tube Assembly has everything you need to get the backend of your... -
Fortis Standard AR-15 Castle Nut
Lightweight Aluminum Castle Nut Only a third of the weight of a mil-spec steel castle nut, the Fortis Standard Castle nut offers a simple way to trim fat from your... -
RECOMMENDED
Bravo Company Gunfighter MOD0 SOPMOD Stock Kit – Includes all Receiver Extension/Buffer Parts
Bravo Company Gunfighter MOD0 SOPMOD Stock Kit Bravo Company's BCMGUNFIGHTER Stock Assembly Mod 0 SOPMOD is a Mil-Spec receiver extension kit that includes a locking nut M4, Mil-Spec carbine action...2 Options -
BCM MK2 Recoil Mitigation System Mod1 for AR-15
Recoil Reducing AR-15 Buffer Kit Bravo Company's MK2 Recoil Mitigation System effectively reduces recoil with a few changes to key components. This kit uses a longer, 8 position buffer tube,...3 Options3 Options3 Options -
UTG Pro AR-15 Pistol Buffer Tube Kit – Buffer, Springs, and More
AR-15 Pistol Buffer Tube Kit The UTG AR-15 Pistol Buffer Tube Kit comes with everything you need to complete the recoil system of your AR pistol. While this kit doesn't... -
Luth-AR .223/5.56 AR-15 Mil-Spec Rifle Fixed Buffer Tube Kit
Luth-AR Fixed Rifle Buffer Tube Kit The Luth-AR Fixed Rifle Buffer Tube Kit includes an A1/A2 length buffer tube, buffer, and buffer spring. This long recoil assembly helps to mitigate... -
LBE Unlimited AR-15 Pistol Buffer Tube Kit
LBE Unlimited AR Pistol Buffer Tube Kit The LBE Unlimited AR Pistol Buffer Tube Kit comes with everything to finish the recoil system for your AR-15 pistol. The kit includes... -
ATI AR10 Buffer Tube Assembly Kit
ATI AR10 Buffer Tube Assembly Kit The Advanced Technology AR10 Mil-Spec Carbine Buffer Tube Assembly is a six-position buffer tube compatible with all mil-spec AR stocks. Additionally, ATI includes a... -
Geissele AR-15 Super 42 Tungsten Buffer Weight
Increases Your Buffer Weight By One Weight Category The Geissele AR-15 Super 42 Tungsten Buffer Weight is a great tool to allow your Geissele Super 42 H1 weighted buffer to... -
Luth-AR Mil-Spec 9mm Buffer Tube Assembly for AR-15
Luth-AR 9mm Buffer Tube Kit This 9mm buffer tube kit from Luth-AR includes a heavy 5.45 oz. buffer, spring, mil-spec tube, plus castle nut and end plate. This assembly threads... -
KVP 6 Position Mil-Spec Stock Completion Kit
Kaw Valley Precision 6-Positon Mil-Spec Carbine Stock Hardware Kit w/ KVP Heavy Buffer Transform your AR-15 build with Kaw Valley Precision's Mil-Spec Stock Upgrade Kit. Take your AR-15 to the... -
Luth-AR .308 Mil-Spec Rifle Fixed Buffer Tube Kit
High-Quality Mil-Spec Rifle Fixed Buffer Tube Kit for AR-15 If you're planning to upgrade your AR-15 stock or build your ultimate AR, it is critical to choose the right buffer... -
Luth-AR .308 Mil-Spec Carbine Buffer Tube Kit
High Quality Mil-Spec Carbine Buffer Tube Kit for AR-10/.308 Rifles If you're planning to build or upgrade your AR-308, it's critical to choose the right buffer tube kit. This buffer...
Other AR 15 Buffer Tube Parts (Receiver Extension):
Buffer Part Kits
Buffer Tubes
Buffers
Other Parts
Recoil Springs
AR15 Buffer Tube End Plate
Castle Nuts
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